Zobrazeno 1 - 10
of 23
pro vyhledávání: '"R. Wietfeldt"'
Autor:
John Reynolds, David Legge, George D. Nicolson, P. M. McCulloch, G. Moorey, R. Wietfeldt, M. Oestreich, G.A. Gowland, E. A. King, R. Otrupcek, J. F. H. Quick, Warwick Wilson, Simon Ellingsen, D. Moffett, R. G. Gough, P. Harbison, R. H. Ferris, Richard Dodson, J.E. Lauf, M. E. Costa, M. W. Sinclair, Anastasios Tzioumis, D. P. Rayner, David L. Jauncey
Publikováno v:
Scopus-Elsevier
The Space VLBI mission, VSOP, involves the participation of 15 countries with up to 40 radio telescopes spread across the Earth observing in close coordination with the 8 m radio telescope on board the Japanese spacecraft HALCA (Hirabayashi, 1998, an
Autor:
David L. Meier, Robert A. Preston, D. W. Murphy, D. L. Traub, Steven Tingay, J. R. Smith, R. Wietfeldt
Publikováno v:
Advances in Space Research. 26:637-640
The Jet Propulsion Laboratory (JPL) is a participant in the VSOP Space VLBI mission, an extensive international collaboration led by Japan's Institute of Space and Astronautical Science (ISAS). The JPL effort is funded by the U.S. National Aeronautic
Autor:
N. S. Kardashev, V. V. Khartov, V. V. Abramov, V. Yu. Avdeev, A. V. Alakoz, Yu. A. Aleksandrov, S. Ananthakrishnan, V. V. Andreyanov, A. S. Andrianov, N. M. Antonov, M. I. Artyukhov, M. Yu. Arkhipov, W. Baan, N. G. Babakin, V. E. Babyshkin, N. Bartel’, K. G. Belousov, A. A. Belyaev, J. J. Berulis, B. F. Burke, A. V. Biryukov, A. E. Bubnov, M. S. Burgin, G. Busca, A. A. Bykadorov, V. S. Bychkova, V. I. Vasil’kov, K. J. Wellington, I. S. Vinogradov, R. Wietfeldt, P. A. Voitsik, A. S. Gvamichava, I. A. Girin, L. I. Gurvits, R. D. Dagkesamanskii, L. D’Addario, G. Giovannini, D. L. Jauncey, P. E. Dewdney, A. A. D’yakov, V. E. Zharov, V. I. Zhuravlev, G. S. Zaslavskii, M. V. Zakhvatkin, A. N. Zinov’ev, Yu. Ilinen, A. V. Ipatov, B. Z. Kanevskii, I. A. Knorin, J. L. Casse, K. I. Kellermann, Yu. A. Kovalev, Yu. Yu. Kovalev, A. V. Kovalenko, B. L. Kogan, R. V. Komaev, A. A. Konovalenko, G. D. Kopelyanskii, Yu. A. Korneev, V. I. Kostenko, A. N. Kotik, B. B. Kreisman, A. Yu. Kukushkin, V. F. Kulishenko, D. N. Cooper, A. M. Kut’kin, W. H. Cannon, M. G. Larionov, M. M. Lisakov, L. N. Litvinenko, S. F. Likhachev, L. N. Likhacheva, A. P. Lobanov, S. V. Logvinenko, G. Langston, K. McCracken, S. Yu. Medvedev, M. V. Melekhin, A. V. Menderov, D. W. Murphy, T. A. Mizyakina, Yu. V. Mozgovoi, N. Ya. Nikolaev, B. S. Novikov, I. D. Novikov, V. V. Oreshko, Yu. K. Pavlenko, I. N. Pashchenko, Yu. N. Ponomarev, M. V. Popov, A. Pravin-Kumar, R. A. Preston, V. N. Pyshnov, I. A. Rakhimov, V. M. Rozhkov, J. D. Romney, P. Rocha, V. A. Rudakov, A. Räisänen, S. V. Sazankov, B. A. Sakharov, S. K. Semenov, V. A. Serebrennikov, R. T. Schilizzi, D. P. Skulachev, V. I. Slysh, A. I. Smirnov, J. G. Smith, V. A. Soglasnov, K. V. Sokolovskii, L. H. Sondaar, V. A. Stepan’yants, M. S. Turygin, S. Yu. Turygin, A. G. Tuchin, S. Urpo, S. D. Fedorchuk, A. M. Finkel’shtein, E. B. Fomalont, I. Fejes, A. N. Fomina, Yu. B. Khapin, G. S. Tsarevskii, J. A. Zensus, A. A. Chuprikov, M. V. Shatskaya, N. Ya. Shapirovskaya, A. I. Sheikhet, A. E. Shirshakov, A. Schmidt, L. A. Shnyreva, V. V. Shpilevskii, R. D. Ekers, V. E. Yakimov
The Russian Academy of Sciences and Federal Space Agency, together with the participation of many international organizations, worked toward the launch of the RadioAstron orbiting space observatory with its onboard 10-m reflector radio telescope from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25572de962db3e7a0d8731c15de2d931
http://arxiv.org/abs/1303.5013
http://arxiv.org/abs/1303.5013
Autor:
R. Wietfeldt
Publikováno v:
2006 IEEE International Symposium on Consumer Electronics.
Mobile broadcast digital TV represents the latest grand addition to the mobile handset convergence phenomenon. Even before it began, mobile DTV was likened to the next killer application in the handset – analogous to the camera phone – and it und
Autor:
P. M. McCulloch, J. R. Smith, James S. Ulvestad, D. L. Jauncey, P. G. Edwards, Hideyuki Kobayashi, Kenta Fujisawa, Leonid I. Gurvits, Roy Booth, Kiyoaki Wajima, Masaki Morimoto, A. J. Mioduszewski, Jonathan D. Romney, Kazunori M. Shibata, N. Kawaguchi, D. L. Traub, John Reynolds, Junichi Nakajima, Wayne Cannon, Shigeki Horiuchi, Seiji Kameno, Peter E. Dewdney, Tsutomu Ichikawa, A. R. Taylor, Mark J. Claussen, Glen Langston, James E. J. Lovell, S. Enome, Steven Tingay, Victor Migenes, B. Carlson, T. Bushimata, R. Wietfeldt, Haruto Hirosawa, Yasuhiro Murata, Ed Fomalont, Y. Asaki, David L. Meier, R. Okayasu, Richard Schilizzi, Chris Flatters, Anthony H. Minter, Makoto Inoue, L. R. D'Addario, J. M. Benson, Tsuneo Kii, Takeshi Miyaji, D. W. Murphy, G. A. Moellenbrock, Robert A. Preston, Hisashi Hirabayashi, J. Ellis, Tomofumi Umemoto
Publikováno v:
Science (New York, N.Y.). 281(5384)
High angular resolution images of extragalactic radio sources are being made with the Highly Advanced Laboratory for Communications and Astronomy (HALCA) satellite and ground-based radio telescopes as part of the Very Long Baseline Interferometry (VL
Autor:
John Reynolds, Jonathan D. Romney, M. E. Costa, J. M. Benson, W. E. Wilson, E. A. King, R. H. Ferris, Jeffrey Smith, D. L. Jauncey, Mark J. Claussen, P. Harbison, Simon Ellingsen, V. Altunin, B. Jenkins, J. Webber, M. Ryne, James Border, C. Knight, R. Wietfeldt, C. Lewis, J. Springett
Publikováno v:
NASA Astrophysics Data System
We describe a space VLBI experiment involving an earth-orbiting satellite (SURFSAT) and simulated satellites, a space VLBI ground tracking station, an array of ground radio telescopes, and a space VLBI correlator. The purpose of this experiment was t
Autor:
John Reynolds, Matthew Bailes, Norbert Bartel, W. E. Wilson, W. van Straten, Wayne Cannon, D. A. Del Rizzo, R. Wietfeldt
Publikováno v:
International Astronomical Union Colloquium. 160:21-22
The phase-coherent recording of pulsar data and subsequent software dispersion removal provide a flexible way to reach the limits of high time resolution, useful for more precise pulse timing and the study of fast signal fluctuations within a pulse.
Autor:
John R. Wietfeldt, John C. Wright
Publikováno v:
The Journal of Chemical Physics. 86:400-410
The site distribution of the different charge compensated sites in singly doped samples of SrCl2:Eu3+ and doubly doped samples containing a second rare earth ion has been measured by site selective laser spectroscopy for a range of different dopant c
Autor:
J. R. Wietfeldt, John C. Wright
Publikováno v:
The Journal of Chemical Physics. 83:4210-4216
Site selective spectroscopy has been performed for SrCl2:Eu3+ samples. The Eu3+ lines have been classified into nine major sites. The anomalous behavior of these sites as a function of concentration and annealing temperature is similar to that of rar
Publikováno v:
The Journal of Chemical Physics. 77:683-692
Site selective spectroscopy has been performed for CaF2:Eu3+ samples as a function of annealing temperature and dopant concentration. The Eu3+ lines have been classified into five sites, two of which correspond with Eu3+ clusters. High annealing temp